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The Valsalva maneuver may help check for a dural tear following certain spinal operations, such as a microdiscectomy. An increase in intra-spinal pressure will cause cerebral spinal fluid (CSF) to leak out of the dura, causing a headache. [citation needed] The Valsalva maneuver has been associated with transient global amnesia. [17] [18] [19 ...
The Trendelenburg position along with the Valsalva maneuver, termed as modified-Valsalva maneuver, can also be used for the cardioversion of supraventricular tachycardia. [ 5 ] The Trendelenburg position is helpful in surgical reduction of an abdominal hernia.
Gas embolism is a diving disorder experienced by underwater divers who breathe gases at ambient pressure, and can happen in two distinct ways: . Pulmonary barotrauma: Air bubbles can enter the bloodstream as a result of gross trauma to the lining of the lung following a rapid ascent while holding the breath; the air held within the lung expands to the point where the tissues tear (pulmonary ...
A peripherally inserted central catheter (PICC or PICC line), also called a percutaneous indwelling central catheter or longline, [1] is a form of intravenous access that can be used for a prolonged period of time (e.g., for long chemotherapy regimens, extended antibiotic therapy, or total parenteral nutrition) or for administration of substances that should not be done peripherally (e.g ...
For AVNRT, sometimes people can use vagal maneuvers as well, which are ways to activate the vagus nerve, which tends to block the AV node temporarily, therefore potentially stopping the episode. Some methods include a carotid sinus massage, as well as a valsalva maneuver—which is forced exhalation against a closed airway.
After a forced expiration, an attempt at inspiration is made with closed mouth and nose, whereby the negative pressure in the chest and lungs is made very subatmospheric; the reverse of a Valsalva maneuver. This technique is designed to look for collapsed sections of airways such as the trachea and upper airways. In this maneuver, the patient ...
Any maneuver that increases left ventricular volume — such as squatting, elevation of legs, hand grip, and phenylephrine — can delay the onset of clicks, shorten murmur duration, and increase murmur intensity. Late systolic Tricuspid valve prolapse Uncommon without concomitant mitral valve prolapse. Best heard over left lower sternal border.
When a Valsalva maneuver is performed during descent with the intention of opening the Eustachian tubes, but they do not open, intrathoracic pressure, central venous pressure, spinal fluid pressure, and inner ear pressure are raised further above ambient pressure, which increases the pressure difference between perilymph of the inner ear and ...